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| Diagenetic evolution and formation mechanism of dissolved pore of shale oil reservoirs of Lucaogou formation in Malang sag |
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WU Lin-gang1,LI Xiu-sheng1,GUO Xiao-bo2,LUO Quan-sheng3,LIU Xiao-jian2,CHEN Xuan3,JIANG Zhen-xue2
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(1. College of Petroleum Engineering in China University of Petroleum, Beijing 102249, China;2. College of Geosciences in China Unwersity of Petroleum, Beijing 102249, China;3. Research Institute of Exploration and Development of Tuha Oilfield，PetroChina, Hand 839009, China)
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| Abstract: |
| Based on the analysis of field emission ESEM，X-ray diffraction，the characteristics of diagenetic evolution and the formation mechanism of dissolved pores of Lucaogou formation shale oil reservoir in Malang sag were systematically researched. The results show that Permian Lucaogou formation shale oii reservoir is characterized by low porosity and ultralow-permeability. Tlie reservoir mainly experienced compaction，dissolution，cementation and metasomatism. Organic matter and inorganic mineral
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| Key words: shale oil reservoirs diagenetic evolution dissolved pores formation mechanism Malang sag |
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